Effie

Effie is a distraction-free writing, note-taking, and mind-mapping app developed by Shanghai 7S2P Technology Co., Ltd. (7S2P Inc.), designed for thinkers and writers who want to turn ideas into polished text. It combines a minimalist markdown editor with a seamless mind map view — toggling between list and mind map with a single click — and includes AI features for brainstorming, summarizing, grammar fixing, and converting mind maps into structured drafts. Content is encrypted, auto-saved, and synced across Mac, Windows, iOS, and Android.